Method of synchronizing multiple content directory services as well as content directory service devices and a system thereof

摘要

A method of synchronizing a plurality of content-directory service (CDS) devices is provided. The method includes retrieving and discovering N CDS devices (20, 30) in a home network by a control point (CP) (10), transmitting a StartSync message that requests the start of synchronization to a certain CDS device of the N CDS devices (20, 30) by the CP (10), forwarding a StartPeerSync message that informs remaining N-1 CDS devices (30) of the fact that synchronization will be started by the CDS device (20) that has received the StartSync message, and synchronizing each of the N CDS devices (20, 30) with the remaining N-1 CDS devices (30), in a home network that includes N CDS devices (20, 30) that provide metadata of multimedia content existing in the home network, and the CP (10) that receives metadata from the N CDS devices (20, 30) and requests the media renderer to replay the multimedia data.